| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | Method and system for key aware scaling | US12858068 | 2010-08-17 | US08294822B2 | 2012-10-23 | Christopher Payson; Timothy Hellman; Ashish Koul |
| A video processing device may process video input comprising a plurality of streams, wherein images corresponding to at least some of the plurality of streams may be displayed concurrently. The video processing device may determine, prior to processing of a pixel in one of the plurality of streams whether the pixel comprises one or more keyed video parameters; and if the pixel comprises at least one keyed parameter, one or more other pixels may be selected, and a video parameter corresponding to the at least one keyed video parameter of the pixel may be generated based on the selected one or more other pixels. The generated video parameter may then be utilized instead of the at least one keyed video parameter during the processing of the pixel. This may comprise luma and/or chroma based scaling. Outputs of the processing of the pixel may be post-processed, by clamping at least one of the video parameters. | ||||||
| 82 | APPARATUS AND METHOD FOR CHROMA-KEY PROCESSING | US13127712 | 2009-11-05 | US20110206279A1 | 2011-08-25 | Shachar Carmi |
| Apparatus for interpolating or dispersing effects over a video frame, useful for chroma keying of an image comprising a foreground including a part to remove, such as a background or spill from the background. The apparatus handles pixels of the image one by one and includes an interpolation unit for applying an interpolation of attributes at a respective pixel and then applies a function based on the attributes. For example in chroma keying an opaqueness assigner may compare the local color with a color of the part to remove using the interpolation. Based on the comparison, keying is used to set at the respective pixel a level of opaqueness for the pixel. | ||||||
| 83 | Condensateur filaire notamment pour circuit radiofréquence et dispositif le comportant | EP11305595.8 | 2011-05-17 | EP2525305A1 | 2012-11-21 | Lahoui, Nizar; Buyukkalender, Arek; Seban, Frédérick |
L'invention concerne un condensateur pour dispositif radiofréquence, ledit condensateur comprenant des première et seconde plaques conductrices (24, 25) en regard séparées d'un isolant (41) ; Le condensateur se distingue en ce qu'au moins une plaque (24) est formée par plusieurs portions de conducteur filaire (24N, 25N). L'invention concerne également un dispositif radiofréquence comportant ce condensateur.
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| 84 | 증강현실 기반의 실감형 학습 콘텐츠 저작 장치 및 방법 | KR1020100081036 | 2010-08-20 | KR1020120018004A | 2012-02-29 | 지형근; 윤진영; 유재상; 이준석; 윤종현 |
| PURPOSE: A device and method for authoring an augmented reality based realistic learning content are provided to improve a learning effect by applying a mutual interaction through a color pattern marker and a chroma-keying method through a blue screen. CONSTITUTION: A realistic learning content storing device includes a project generating unit(100), a page generating unit(102), a marker designating unit(104), a scene generating unit(106), a scene setting unit(108), and a connection relation setting unit(110). The project generating unit generates a project comprised of a plurality of pages by corresponding to all the contents of an XML file. The page generating unit generates a page corresponding to the content defined by a single worksheet. A marker designating unit designates a marker used in the page generated by the page generating unit. The scene setting unit sets a scene. The connection relation setting unit sets the connection relation between the marker and a virtual object. | ||||||
| 85 | 조명제어에 의한 사실적 영상합성 방법 | KR1020030054682 | 2003-08-07 | KR1020050015737A | 2005-02-21 | 이형석 |
| PURPOSE: A real image synthetic process by illumination control is provided to synthesize a real image by matching illumination of a virtual set image modeled by a 3D program with illumination irradiated into an object such as an actor photographed in another place such as a real studio. CONSTITUTION: A real image synthetic process by illumination control includes the steps of storing a virtual set modeled in a super computer(20) and a subdivided set illumination image data, recognizing three-dimensional position data of an object(103) when photographing the object in a real studio, sending proper illumination brightness and a color control signal to a controller(30), controlling an illumination lamp(102) depending on the proper illumination brightness and the color control signal to illuminate the object, photographing the object and a black and white image using a black and white video camera(50), inputting the photographed object and the black and white image to a chroma keyer(60) to transparently process the input image except for the object and transmitting the image signal in which only the object exists, to an image synthetic unit(70), and synthesize the image signal of the object and the virtual set image signal at the image synthetic unit. | ||||||
| 86 | Condensateur filaire notamment pour circuit radiofréquence et dispositif le comportant | EP12305120.3 | 2012-01-31 | EP2624670A1 | 2013-08-07 | Buyukkalender, Arek; Bousquet, Christophe; Seban, Frédérick; Lahoui, Nizar |
L'invention concerne un condensateur pour dispositif radiofréquence, ledit condensateur comprenant des première et seconde plaques conductrices (24, 25) en regard l'une de l'autre et séparées par un isolant (41) ; Le condensateur se distingue en ce qu'au moins une desdites première ou seconde plaques (24) est formée par plusieurs portions de conducteur filaire (24N, 25N). L'invention concerne également un dispositif radiofréquence comportant ce condensateur.
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| 87 | Automatic gain control circuit | JP13624484 | 1984-06-29 | JPS6115478A | 1986-01-23 | IKEMOTO NAOMICHI |
| PURPOSE:To attain a peak type and a keyed type gain control by means of a comparator by extracting selectively an output of a couple of amplifers amplifying respectively a luminance signal and a peak value of a synchronizing signal where the synchronizing tip is used as reference through the use of a burst gate pulse. CONSTITUTION:An amplifier circuit 13 whose amplifier gain is switched by means of a burst gate pulse is connected between a luminance/chrominance separating circuit 4 and a comparator 12. The amplifier circuit 13 consists of a differential amplifier circuit 13k for keyed comparison input and a part of a differential amplifier circuit 13p for the peak value comparison input and both the differential amplifier circuits 13k, 13p are made to the identical constitution excpet for emitter resistors Rk, Rp. Then a switch 14 is changed over to the differential amplifier circuit 13k during the burst gate pulse only and switched to the differential amplifier circuit 13p during any other periods, then the input to the comparator 12 is different between the keyed type and the peak value type and the amplifier gain corresponding to each gain control is obtained. | ||||||
| 88 | 画像処理装置、画像処理システム及び画像処理方法 | JP2014066634 | 2014-03-27 | JP2015191314A | 2015-11-02 | 山口 弘市 |
| 【課題】半透明の領域を有するCG画像の通信量を抑えつつ、正確にCG画像をクロマキー合成できる画像処理システムを構成できるようにする。 【解決手段】コントローラ側では、まず、画像処理装置から受信したCG画像の中に半透明の個所があるか否かを判定する。そして、ブロック単位でCG画像を半透明のエリアと非半透明のエリアとに分割し、これらをエンコードしてHMDに送信する。一方、HMD側では、ブロック単位の半透明の画像及び非半透明の画像をブロック単位で撮像画像とクロマキー合成する。その後、同じブロック番号を有する半透明の領域を含むブロックが存在する場合は、さらに、その合成した画像に半透明でクロマキー合成する。 【選択図】図4 |
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| 89 | Pal system video signal recording/reproducing device | JP23277189 | 1989-09-11 | JPH0397389A | 1991-04-23 | ITO SHIGEYUKI |
| PURPOSE: To realize the facilitation of the expansion of the band of a chroma signal, the improvement of S/N and the generation of s pilot burst signal by generating a low band converted chroma signal for record by modulating directly two color difference signals by a low bend carrier, and generating a chroma signal by modulating the processed color difference signal. CONSTITUTION: The color difference signals R-Y, B-Y outputted from a noise reducer 37 and a pilot burst addition circuit 41 pass through switches 66, 67 respectively, and after being band-limited by LPFs 68, 69, they pass through the switches 70, 71 further, and are clamped by keyed clamp circuits 72, 73, and are supplied to multiplication circuits 74, 75. The multiplication circuits 74, 75 constitute a quadrature two-phase modulation circuit for forming directly the low band converted chrome signal from the color difference signals R-Y, B-Y of a base band together with an addition circuit 76. Thus, a recording signal consisting of an FM luminance signal and the low band converted chroma signal can be formed directly from the luminance signal Y and the color difference signals R-Y, P-Y of the base band. COPYRIGHT: (C)1991,JPO&Japio | ||||||
| 90 | Color video signal recording and reproducing system | US3704341D | 1970-02-18 | US3704341A | 1972-11-28 | FUJITA MITSUO |
| A color video signal recording and reproducing system frequency converts a carrier chroma signal of a color television video signal to lower its frequency band to a recordable level. This signal is then mixed with a luminance signal of a limited frequency band to produce a combined signal which is supplied to a monochrome video tape recorder for recording on a magnetic tape. The frequency and phase of a color burst signal of a carrier chroma signal has a variation in the timing axis. An automatic phase control circuit takes this burst signal out of a video signal reproduced from the magnetic tape. The phase control circuit comprises a feedback loop including a voltage control oscillator, color burst keyer, phase comparator, and at least one frequency convertor. The feedback loop signal is made to agree with the output of a reference subcarrier generator. The carrier chroma signal is frequency converted and combined with a luminance signal taken out from the reproduced signal to provide a color video signal. This color signal includes a carrier chroma signal, from which the variation in the timing axis has been removed, and a luminance signal having a limited frequency band.
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| 91 | Chroma-key signal generator | JP4000479 | 1979-04-02 | JPS55132186A | 1980-10-14 | MATSUO MASAYOSHI; ARAKI YOSHIKATSU |
| PURPOSE:To improve the absence of a chroma-key by generating a key signal even as to a background color whose color range is narrow and low in chroma saturation, by performing the special processing of red, blue and green signals outputted from a color television camera, etc. CONSTITUTION:Red R, blue B and green G signals from a color television camera are applied to terminals 12, 11 and 13 respectively and sent to the R' point, B' point and G' point of matrix circuit 14 with low impedance. Then, the C' point and M' point are set in the matrix to obtain (B+G)/2 and (R+B)/2 respectively, and they are sent to non-addition NAM circuit 21 to extract minimum (B+G)/2 and (R+B)/2 signals. Further, subtracting circuit 22 subtracts the (R+G)/2 signal of the Y' point from the output signal of NAM circuit 21 and black clipping circuit 23 clips the difference to obtain a key signal at terminal 24. | ||||||
| 92 | Segmentation of an object from a background in digital photography | US09638159 | 2000-08-14 | US06766054B1 | 2004-07-20 | James Edward Christensen; Alan George Cole; Ravishankar Rao |
| The present invention provides methods and apparatus to distinguish and/or separate an object from a background. The methods use backgrounds of known and/or advantageous texture. In an embodiment, a measure of image texture, namely the spatial frequency is used to distinguish and/or separate an object from its background. The use of image texture overcomes limitations of chroma keying used as a processing technique in photography for object-background separation. This is useful in the separation of image pixels belonging to the object of interest from image pixels belonging to the background. | ||||||
| 93 | Multimodal Foreground Background Segmentation | US13918747 | 2013-06-14 | US20140307056A1 | 2014-10-16 | Alvaro Collet Romea; Bao Zhang; Adam G. Kirk |
| The subject disclosure is directed towards a framework that is configured to allow different background-foreground segmentation modalities to contribute towards segmentation. In one aspect, pixels are processed based upon RGB background separation, chroma keying, IR background separation, current depth versus background depth and current depth versus threshold background depth modalities. Each modality may contribute as a factor that the framework combines to determine a probability as to whether a pixel is foreground or background. The probabilities are fed into a global segmentation framework to obtain a segmented image. | ||||||
| 94 | Automatic photobooth with electronic imaging camera | US08345794 | 1994-11-22 | US06298197B1 | 2001-10-02 | John Laurence Wain; Barry Allen Marchini; Richard Layton Fry |
| An automatic picture taking system has a housing which may be in the form of a booth. The housing contains a video camera and is arranged to produce a video picture of a subject in a picture taking zone. The video picture can be converted to a print e.g. using a digital thermal color printer. The video picture is stored in memory and can be processed to give a desired composition prior to printing. The picture may consist of the image of the subject which is separated from the background using chroma keying and which is then combined with a selected electronically prestored background or foreground. | ||||||
| 95 | System for producing a shadow of an object in a chroma key environment | US688300 | 1996-07-30 | US5737031A | 1998-04-07 | Aviv Tzidon; Dekel Tzidon |
| A video system is described which creates a virtual shadow of a foreground object filmed in front of a blue screen with a main video camera. The virtual shadow is created using a second video camera located as a virtual light source. Images from both cameras are processed by a chroma keyer to separate the foreground object. The video image from the second camera is processed to create the virtual shadow and both video images are combined with background image. Object location and actor prompting systems are described. | ||||||
| 96 | System for mixing two color television signals | US307381 | 1981-10-01 | US4413273A | 1983-11-01 | Gerhard Wischermann |
| The specification describes a system for mixing and (chroma keying) two color television signals as a function of the color of one of the color signals, or of a third color television signal. The system comprises an automatic color generator by means of which the color present in a foreground signal at a selectable position on the corresponding television picture is used as a reference for the switching operation. The adjustment of the keying color is thereby considerably simplified. | ||||||
| 97 | CHROMA KEYING STUDIO SYSTEM | PCT/IB9700219 | 1997-01-29 | WO9728654A2 | 1997-08-07 | TZIDON AVIV; TZIDON DEKEL |
| A video system is described which creates a virtual shadow of a foreground object filmed in front of a blue screen with a main video camera. The virtual shadow is created using a second video camera located as a virtual light source. Images from both cameras are processed by a chroma keyer to separate the foreground object. The video image from the second camera is processed to create the virtual shadow and both video images are combined with background image. Object location and actor prompting systems are described to enable an actor to easily find his way around the set, and to focus his gaze on the virtual objects appearing in or disappearing from the studio. The prompting system gives the actor the timings for various events taking place in the studio. The special markings are completely invisible to the camera and to the home viewers because they are either projected in a chroma-key color, or are only active during virtual blanks of the camera such as the vertical blanking interval or the horizontal blanking interval in an NTSC, PAL, SECAM or other video signal format. | ||||||
| 98 | カメラ撮影で取得した画像から被写体部分を切り抜く方法および装置 | PCT/JP2016/053818 | 2016-02-09 | WO2016136462A1 | 2016-09-01 | 駒井 愼一; 駒井 恵一; 竹田 直人; 宿院 康昭; 金地 順平 |
大掛かりな装置構成を用いることなく低コストかつ簡単に、クロマキーが実現できるようにする。定位置にカメラを配置する（Ｓ１）。カメラによって背景のみの画像を取得し、当該画像をその撮影時の焦点距離と関係づけて保存する（Ｓ２）。カメラの前方に被写体を配置して撮影し、被写体が写った画像を取得する（Ｓ３）。保存した背景のみの画像から、被写体の撮影時の焦点距離に一致する焦点距離または最も近い焦点距離で取得した背景のみの画像を抽出する（Ｓ４）。抽出した背景のみの画像と被写体が写った画像を用いて背景差分法による画像処理を行って、被写体が写った画像から被写体部分を切り抜き、被写体が写った画像中の被写体部分以外の部分を所定の色で塗りつぶす（Ｓ５）。 |
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| 99 | AUGMENTED REALITY SIMULATOR | PCT/US2015/018367 | 2015-03-02 | WO2015138181A1 | 2015-09-17 | RUBLOWSKY, Stefan, J.; CRYE, Caleb, Clark |
An augmented reality system (18) in which video imagery of a physical environment (20) is combined with video images output by a game engine by the use of a traveling matte (31) which identifies portions of the visible physical environment by techniques such as computer vision or chroma keying and replaces them with the video images output by the video game engine. The composited imagery of the physical environment (20) and the video game imagery is supplied to a trainee (24) through a headmounted display screen (30). Additionally, peripheral vision is preserved either by providing complete binocular display to the limits of peripheral vision, or by providing a visual path to the peripheral vision which is matched in luminance to higher resolution augmented reality images provided by the binocular displays (30). A software/hardware element comprised of a server control station (21) and a processor (36) onboard the trainee (24) performs the modeling, scenario generation, communications, tracking, and metric generation. |
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| 100 | Blending a graphic | US09160428 | 1998-09-24 | US06229550B1 | 2001-05-08 | James R. Gloudemans; Richard H. Cavallaro; Stanley K. Honey; Marvin S. White |
| A graphic and video are blended by controlling the relative transparency of corresponding pixels in the graphic and the video through the use of blending coefficients. One example of a blending coefficient is an alpha signal used in conjunction with a keyer. The value of a blending coefficient for a pixel in the graphic is based on the luminance and chrominance characteristics of a neighborhood of pixels in the video. Inclusions and exclusions are set up which define how the neighborhood of pixels is used to create or change a particular blending characteristic. | ||||||
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